5 ounces uncooked rice vermicelli noodles
1/2 cup lukewarm water
3 tablespoons granulated sugar
1/4 cup fresh lime juice
1 tablespoon rice vinegar
5 teaspoons fish sauce (such as Three Crabs)
2 serrano chiles, thinly sliced
4 cups (1/4-inch) slices green leaf lettuce
3 cups diagonally cut slices seeded Kirby (pickling) cucumber (about 2)
1/4 cup cilantro leaves
1/4 cup torn Thai basil leaves
1/4 cup torn mint leaves
2 teaspoons cornstarch
1 teaspoon dark brown sugar
1/4 teaspoon salt
3/4 teaspoon white pepper
1 pound large shrimp, peeled and deveined
2 tablespoons canola oil, divided
1/3 cup (1/4-inch) slices green onions
3 garlic cloves, finely chopped
1/2 cup unsalted, dry-roasted peanuts, coarsely chopped